Adjustable window-shade support



Sept. 16 1924.

- 1,508,431 B. w. WHITWORTH ADJUSTABLE WINDOW SHADE SUPPORT Filed July25. 1923 2 shun-shed 1 I N VEN TOR.

M kWh/W72 I 1,598,435! a. w. WHITWORTH ADJUSTABLE- W INDOW SHADE SUPPORT2 Shemts-Sht '2 Filed Jilly 1923 A TTORNEY.

Patented Sept. 16, 1924.

11 HT r ADJUSTABLE WINDOW-SHADE SUPPORT.

Application filed July 25, 1923. Serial No. 653,645.

To all whom it may concern:

Be it known that BEVILL 1V. WrirTwoRTH, a citizen of the United States,residing at Omaha, in the county of Douglas and State of Nebraska, hasinvented certain new and useful Improvements in Adjustablel/Vindow-Shade Supports, of which the following is aspecification,reference being had therein to the accompanying drawings.

The invention relates to adjustable window shade supports, and has forits object to provide a device of this character comprising verticallydisposed guide casings at opposite sides of the window frame havingshade supporting blocks therein, and to provide pulley and cable means,actuated from adjacent the lower end of one of said guides whereby theshade supporting blocks may be simultaneously raised or lowered for ad-vjusting the position of the shade in a vertical plane.

A further object is to provide the upper end of one of said guides witha doublepulley, and the double pulley guide with a double crank actuatedpulley at its lower end, to which cables are connected. The cablesextend upwardly through the shade supporting block and over the doublepulley at its upper end, and one of said cables eX- tends downwardlyinto said guide and is connected to the shade supporting block. Theother cable extends across the frame and over a single pulley within theupper end of the other block guide and thence downwardly and connectedto the shade supporting block in said last named guide.

With the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawing, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawing Figure 1 is a perspective view of a window frame, showingthe device applied thereto.

Figure 2 is a perspective view of the left hand shade supporting block.

Figure 3 is a perspective View of the right hand shade supporting block.

Figure 4 is a perspective view of one of the upper pulley carryingmembers.

Figure 5 is a perspective View of one of the lower pulley carryingmembers.

Figure 6 is a side elevation of one of the pulley carrying membersshowing a single pulley therein.

Figure 7 is a front elevation partly in section of the left hand guide.

Figure 8 is a side elevation of the double pulley member. Figure 9 is afront'elevation partly i section of the right hand guide and itsmechanism.

Figure 10 is a side elevation of the right angle guide. 5

Figure ll is a perspective view of the ratchet pawl.

Figure 12 is a horizontal sectional view through the right hand guidetaken on line 12-12 of Figure t Figure 13 is a horizontal sectional Viewtaken on line 13-13 of Figure 7 Figure 14 is a horizontal sectional viewtaken on line 1 1 1 1 of Figure 7.

Referring tothe drawings, the numeral 1 designates a conventional formof window frame and 2 a shade roller having a shade 3. The roller 2 isadapted to be adjusted to various elevations in a'vertical plane,thereby allowing the shade 8 to be manipulated for excluding light atany particular position in relation to the window 4,-and at the sametime allowing entrance of light though the window where it is notobjectionable. vTo accomplish the above result vertically disposed guidecasings 5 are provided, which may be'secured at the side rails 6 of thewindow frame 1 in any suitable manner. The outer sides of the guidecasings 5 are provided with vertically disposed slots 7, through whichslots the shade supporting brackets 8 extend for supporting the shaderoller 2 in the usual manner., The shade supporting brackets 8 havetheir inner ends provided with plates 9, which plates have dove-tailedconnections 10 with the weight blocks 11 and 12. WVeight blocks 11 and12 are vertically slid-able within the guide casings 5, and are adaptedto be simultaneously moved upwardly or downwardly for supporting theshade roller 2 at various elevations. Disposed within the upper end ofthe left hand guide casing 5 is a pulley casing 18, which casing isprovided with flanges 14, which overlie the side walls of the upper endof the casings 5, thereby preventing downward movement of the pulleycasing 13, in which is rotatably mounted a single pulley 15. Connectedat 16 to the weight member 11 is a cable 17, which cable extendsupwardly over the pulley 15 through the side of the casing 5 and acrossthe window frame, and thence over one of the double pulleys 18 in thepulley casing 19 at the upper end of the right hand guide casing 5. Thecable 17, after passing over one of the pulleys 18 extends downwardlythrough the weight block aperture 20 and around the ratchet carryingpulley 21 and is secured thereto at 22, therefore it will be seen thatwhen the ratchet pulley 21 is rotated by the crank 23, the cable 17 willbe wound thereon, and consequently the weight block 11 will be raisedfor elevating the shade roller2 at one end. Connected to the ratchetpulley 24; as at 25 is a cable 26, which cable extends upwardly throughthe aperture 20, and thence over the other double pulley 13, anddownwardly into the guide casing 5 and is connected at 27 to the weightblock 12, there fore it will be seen upon rotation o'l the crank 23,both weight blocks 11 and 12 will be simultaneously raised or lowered,and consequently the shade roller 2 will be elevated or lowered to thedesired position.

The ratchet pulleys 21 and 24; are carried by the casing 28 disposed inthe lower end of the guide casing 5, and said casing is provided withflanges 29, which overlie the sides of the casing 5, and consequentlymaintain said casing 28 against upward displacement incident to strainon the cables 26 and 17. The upper double pulleys 18, which are disposedin the casing 17 are held against downward displacement incident tostrain on the cables 17 and 26 by means of flanges 30, which overlie theupper ends of the sides of the right hand casing 5. To hold the weightblocks 11 and 12 in any de sired position the inner side of the righthand casing 5 is provided with a 'T-slot 31, in the vertical portion 32of which a detent 33 is disposed, said detent being provided withoppositely disposed notches 34 for receiving the sides of the verticalportion 33 after the detent has been passed through the horizontallydisposed portion 35 of said T-slot. Detent 33 cooperates with theratchet teeth 36 carried by the ratchet pulleys 21 and 2 1, and holdsaid pulleys 21 and 2% against retrograde movement after the weightblocks 11. and 12 have been adjusted to the desired position, howeverwhen it is desired to lower the shade roller 2, it will only benecessary to press downwardly on the outer end 01. the detent and allowreverse rotation of the pulleys 21 and 2e, preferably under the controlof the operator who grasps the tank 23.

From the above it will be seen that a supporting means is provided forshade rollers, whereby a shade roller may be easily and quickly adjustedto various positions in a vertical plane, and the device is simple inconstruction and positive in operation.

The invention having been set forth what is claimed as new and useful isThe combination with an adjustable shade supporting device comprisingvertically disposed casings, members within the casing for supporting ashade roller, pulley and cable means for simultaneously moving saidshade supporting members, said pulleys being disposed within the ends ofthe easings, of means for supporting said pulleys, said means comprisingcasings disposed within the ends of the vertically disposed casings,said pulley carrying casings being provided with flanges overlying theends of the vertically disposed casings.

In testimony whereof I hereunto ail-ix my signature.

BEVILL W. 'VVHITWVORTH.

